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Finding the Fourth Proportional to 490,697.39, 736,144.81 and 175,146.10

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Solution

The fourth proportional to 490,697.39, 736,144.81 and 175,146.10 is: 262,754.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,697.39 : 736,144.81 = 175,146.10 : x
  2. Step 2: Convert to fraction form
    490,697.39/736,144.81 = 175,146.10/x
  3. Step 3: Cross multiply
    490,697.39x = 736,144.81 × 175,146.10
  4. Step 4: Simplify right side
    490,697.39x = 128,932,890,228.51
  5. Step 5: Solve for x
    x = 128,932,890,228.51/490,697.39
  6. Step 6: Final answer
    x = 262,754.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.